Factorial Trailing Zeroes LeetCode solution in Python

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class Solution:
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    def trailingZeroes(self, n: int) -> int:
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        res = 0
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        for i in range(2, n + 1):
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            while i > 0 and i % 5 == 0:
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                i //= 5
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                res += 1
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        return res